High-performance TPU-LCF20 thermoplastics
TPU-LCF20 is a fiber-reinforced thermoplastic elastomer that combines the flexibility of TPU with 20% long carbon fiber for enhanced strength, stiffness, and fatigue resistance. Ideal for semi-structural parts requiring both resilience and mechanical durability under dynamic loads.
- Model number: TPU-LCF-BCA2
- Matrix Resin: Thermoplastic polyurethane (TPU)
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
TPU-LCF20 | 20% Long Carbon Fiber Reinforced Thermoplastic Polyurethane
TPU-LCF20 is a performance-engineered thermoplastic elastomer that incorporates 20% long carbon fiber reinforcement into a durable TPU matrix. This increased fiber loading significantly enhances tensile strength, stiffness, and dimensional stability, while retaining the elastomeric flexibility and abrasion resistance that TPU is known for.
With twice the fiber content of TPU-LCF10, TPU-LCF20 offers improved load transfer, reduced creep, and superior resistance to fatigue and mechanical deformation—especially in parts subject to dynamic stress, vibration, or repeated flexing. The long fiber reinforcement enables semi structural behavior without sacrificing shock absorption and resilience.
Designed for more demanding applications where mechanical strength and energy return must coexist, TPU-LCF20 is ideal for hybrid structural flexible components in automotive systems, industrial assemblies, robotic linkages, and wear-resistant flexible protection gear.
Core Performance Highlights
Mechanical Properties
Carbon Fiber Content: 20% (Long Carbon Fiber, aligned for optimal strength and fatigue life)
Tensile Strength: ≥ 60 MPa
Elongation at Break: ≥ 80%
Shore Hardness: ~96A
→ Excellent balance of rigidity and elasticity for use in vibration prone mechanical environments.
Thermal Resistance
Heat Deflection Temperature (HDT): ~100 °C
Continuous Use Temperature: Up to 90 °C
→ Performs reliably in thermally active zones near engines or motors.
Environmental & Chemical Durability
Moisture Absorption: Low — retains shape and strength in humid or submerged settings
Chemical Resistance: Excellent — withstands oils, fuels, greases, and most industrial solvents
→ Withstands chemical exposure in harsh automotive and industrial environments.
Processing & Manufacturing
Molding Methods: Injection molding, extrusion, and long fiber capable 3D printing
Surface Finish: Matte with visible fiber texture depending on flow and orientation
Tooling Considerations: Hardened steel tools and optimized flow channels recommended for fiber alignment and mold longevity
→ Supports efficient production with improved performance in end use parts.
Target Applications
Automotive & Mobility Systems
Dynamic covers, flex rigid brackets, underhood isolators
→ Stronger than TPU-LCF10, ideal for parts near heat sources or experiencing load cycling.
Industrial Equipment
Abrasion resistant joints, semi rigid couplings, vibration isolating connectors
→ Extends service life in mechanically and thermally active environments.
Robotics & Automation
Motion joints, flex structured arms, sensor mounts
→ Combines structural strength with controlled motion and fatigue resistance.
Wearables & Protection Systems
Impact dispersing inserts, semi rigid exo shells
→ Enables lightweight yet tough components for gear used in rugged or repetitive conditions.
Performance Summary Table
| Property | Value / Description |
|---|---|
| Carbon Fiber Content | 20% (Long Carbon Fiber) |
| Tensile Strength | ≥ 60 MPa |
| Elongation at Break | ≥ 80% |
| Shore Hardness | ~96A |
| Heat Deflection Temp. | ~100 °C |
| Long Term Service Temp. | Up to 90 °C |
| Water Absorption | Low — maintains dimensional integrity when humid/wet |
| Chemical Resistance | Excellent — resists common fuels, oils, and solvents |
| Wear Resistance | Very high — suitable for repeated mechanical motion |
| Processing Methods | Injection molding, extrusion, LCF-compatible 3D printing |
| Surface Finish | Matte with visible carbon pattern depending on geometry |
| Dimensional Stability | Superior — suitable for semi-structural flexible parts |
Friction coefficient of PA12-LCF
The friction coefficient of TPU is typically between 0.3 and 0.5, while TPU-CF, with added carbon fiber, lowers the friction coefficient to between 0.2 and 0.4. The smaller the value, the better the wear resistance. Therefore, TPU-CF generally offers better wear resistance than pure TPU, especially under high-load conditions.
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Frequently Asked Questions
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What are CF Reinforced Thermoplastic Composites?
CF Reinforced Thermoplastic Composites are materials where carbon fibers are incorporated into a thermoplastic matrix. They combine the strength and stiffness of carbon fibers with the processability and recyclability of thermoplastics. For instance, they are used in automotive parts like bumper beams.
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What are the benefits of CF Reinforced Thermoplastic Composites over traditional composites?
The key benefits include faster production cycles, easier recyclability, and better impact resistance. They also offer design flexibility. An example is in the manufacturing of consumer electronics casings where complex shapes can be achieved more easily.
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How are CF Reinforced Thermoplastic Composites processed?
Common processing methods include injection molding, extrusion, and compression molding. Injection molding is widely used for mass production. For example, in the production of small components for the medical industry.
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What industries use CF Reinforced Thermoplastic Composites?
They are utilized in aerospace, automotive, medical, and sports equipment industries. In aerospace, they can be found in interior components. In the medical field, they might be used in prosthetics.
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How does the carbon fiber content affect the properties of the composites?
Higher carbon fiber content generally leads to increased strength and stiffness but may reduce ductility. A moderate content is often balanced for specific applications. For example, a higher content might be preferred in structural parts of a race car.
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What are the challenges in using CF Reinforced Thermoplastic Composites?
Challenges include higher material costs, complex processing equipment requirements, and ensuring uniform fiber dispersion. Issues with adhesion between the fibers and the matrix can also arise. An example is in achieving consistent quality in large-scale production.
